A cell phone jammer is a device that blocks transmission or reception of mobile phone signals, usually by creating some form of interference at the same frequency ranges that cell phones use. It is commonly used in at places where using mobile phones is prohibited such as examination rooms, schools, conference rooms,courts, theaters and prisons etc.
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Shenzhen Wings Technology Co.,Ltd
Rm 605, Shi-dai-ke-chuang Center, Gushu Second Road, Bao'an District, Shenzhen, Guangdong, China